# APR software issue

**URL:** <https://forums.speedlife.net/t/apr-software-issue/262003>\
**Category:** Shift518 Automotive\
**Created:** [December 25, 2011, 5:45am UTC](https://forums.speedlife.net/t/apr-software-issue/262003 "2011-12-25T05:45:49Z")\
**Posts on this page:** 1\
**Showing post:** 3

<div class="post-metadata">

**Author:** ![ChrisCaz](https://avatars.discourse-cdn.com/v4/letter/c/6de8d8/32.png) [@ChrisCaz](https://forums.speedlife.net/u/ChrisCaz)\
**Post date:** [December 26, 2011, 12:24am UTC](https://forums.speedlife.net/t/apr-software-issue/262003/3 "2011-12-26T00:24:17Z")

</div>

> [@Official: NHL Playoff Thread](https://forums.speedlife.net/t/official-nhl-playoff-thread/46500/288):
>
> How do you know its reverting back?
> 
> Do you have a boost gauge? Easiest way to tell if its in stock mode VS what ever is the boost will be like 7-14psi stock, and about 18-2# in APR mode.
> 
> Only thing that could do it the voltage drops so far that the ECU resets, but somehow still starts the car. Which is doubtfull. Even though its winter and cold = less battery power… I would assume that it requires MORE voltage and amperage to start the car than it would to loose the ecu configuration. So if the car is starting fine, i would doubt that this is the issue.

Yeah, another forum said it could be the battery but the car starts and cranks fine. I can tell it is in stock because the power and torque just isn’t there. I don’t have a boost gauge but I can tell by feel and watching how the RPM’s react to the gas pedal. For example, in Stage 1 travelling at approx. 30mph I’ll floor the car, the RPM’s will immediately shoot to 5k and I’ll be pushed back into my seat a bit. In stock, same situation, the engine takes longer to get to 5k RPM’s and the acceleration isn’t as pronounced.

Do you think the battery could be on it’s way out? It is the stock battery in an '07.

---

_[View the full topic](https://forums.speedlife.net/t/apr-software-issue/262003)._